Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e3e8a75d2acfc61ebf25524666a0a2c6abb0620c
Commit: e3e8a75d2acfc61ebf25524666a0a2c6abb0620c
Parent: cefc8be82403cfc4325e7b9b063f77dc0f34e19e
Author: Kirill Korotaev <[EMAIL PROTECTED]>
AuthorDate: Sat Feb 10 01:46:19 2007 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Sun Feb 11 10:51:34 2007 -0800
[PATCH] Extract and use wake_up_klogd()
Remove hack with printing space to wake up klogd. Use explicit
wake_up_klogd().
See earlier discussion
http://groups.google.com/group/fa.linux.kernel/browse_frm/thread/75f496668409f58d/1a8f28983a51e1ff?lnk=st&q=wake_up_klogd+group%3Afa.linux.kernel&rnum=2#1a8f28983a51e1ff
Signed-off-by: Alexey Dobriyan <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
include/linux/kernel.h | 1 +
kernel/printk.c | 10 ++++++++--
lib/bust_spinlocks.c | 10 +---------
3 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 7e86130..e91dce7 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -176,6 +176,7 @@ static inline void console_verbose(void)
}
extern void bust_spinlocks(int yes);
+extern void wake_up_klogd(void);
extern int oops_in_progress; /* If set, an oops, panic(), BUG() or
die() is in progress */
extern int panic_timeout;
extern int panic_on_oops;
diff --git a/kernel/printk.c b/kernel/printk.c
index 3e79e18..4da26b0 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -783,6 +783,12 @@ int is_console_locked(void)
return console_locked;
}
+void wake_up_klogd(void)
+{
+ if (!oops_in_progress && waitqueue_active(&log_wait))
+ wake_up_interruptible(&log_wait);
+}
+
/**
* release_console_sem - unlock the console system
*
@@ -825,8 +831,8 @@ void release_console_sem(void)
console_locked = 0;
up(&console_sem);
spin_unlock_irqrestore(&logbuf_lock, flags);
- if (wake_klogd && !oops_in_progress && waitqueue_active(&log_wait))
- wake_up_interruptible(&log_wait);
+ if (wake_klogd)
+ wake_up_klogd();
}
EXPORT_SYMBOL(release_console_sem);
diff --git a/lib/bust_spinlocks.c b/lib/bust_spinlocks.c
index 0ee968e..accb356 100644
--- a/lib/bust_spinlocks.c
+++ b/lib/bust_spinlocks.c
@@ -19,19 +19,11 @@ void __attribute__((weak)) bust_spinlocks(int yes)
if (yes) {
oops_in_progress = 1;
} else {
- int loglevel_save = console_loglevel;
#ifdef CONFIG_VT
unblank_screen();
#endif
oops_in_progress = 0;
- /*
- * OK, the message is on the console. Now we call printk()
- * without oops_in_progress set so that printk() will give klogd
- * and the blanked console a poke. Hold onto your hats...
- */
- console_loglevel = 15; /* NMI oopser may have shut the
console up */
- printk(" ");
- console_loglevel = loglevel_save;
+ wake_up_klogd();
}
}
-
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